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현미 도정과정에 따른 살균제 Hexaconazole, Tricyclazole 및 살충제 Etofenprox, Imidacloprid 잔류량 변이
노진호(Jin-ho Ro),임성진(Sung-Jin Lim),진용덕(Yong-duk Jin),김단비(Danbi Kim),최근형(Geun-Hyoung Choi),김상수(Sang-Su Kim),이학원(Hak-won Lee),박지현(Ji-hyun Park) 한국농약과학회 2017 농약과학회지 Vol.21 No.3
This study was performed to elucidate pesticide residues of hexaconazole, tricyclazole, etofenprox and imidacloprid in polished and unpolished rice. The pesticides were sprayed two and three times onto the crops at recommended and double dose, and the residue of them were determined in polished and unpolished rice after harvested. Hexaconazole residues of polished and unpolished samples were <LOD-0.04 and <LOD-0.09 mg/kg, respectively. Tricyclazole residues of polished and unpolished samples were 0.17-0.88 and 0.32-1.37 mg/kg, respectively. Etofenprox was not detected on polished samples at recommended and double dose, but the residues in unpolished samples were 0.03-0.26 mg/kg. Imidacloprid residues of polished and unpolished samples were <LOD-0.02 and <LOD-0.07 mg/kg, respectively. The pesticide residues were notably decreased in polished rice. These results showed that polishing would be an effective method to reduce the residue of hexaconazole, tricyclazole, etofenprox and imidacloprid residues in rice.
김경진 ( Gyeong-jin Kim ),양애리 ( Ae-li Yang ),김진배 ( Jin-bae Kim ),진용덕 ( Yong-duk Jin ),노진호 ( Jin-ho Ro ),김단비 ( Dan-bi Kim ),류지혁 ( Ji-hyock Yoo ),오경석 ( Kyeong-seok Oh ),문병철 ( Byeong-churl Moon ),박상원 ( Sang 한국환경농학회 2017 한국환경농학회 학술대회집 Vol.2017 No.-
2016년에 대중국 쌀 수출길이 열리면서 낮은 인지도 및 고가격 대비 차별성을 극복하기 위해서 고품질 쌀 생산 및 가공기술과 더불어 안전성 확보는 필수요소가 되었다. 중국의 식품안전법에 근거로 한 새로운 食品中汚染物限量(GB2762-2012, 2013.6.1.)에 규정된 중금속 안전관리 기준에 맞는 쌀 생산을 위하여 6개 시군(철원, 이천, 청주, 서천, 군산, 해남)의 중국 수출용 쌀 생산단지에서 농경지 토양, 농업 용수 및 생산된 쌀을 채취하여 중금속을 분석하였다. 수출용 쌀 생산단지 토양의 비소 함량은 2.9~18.2 mg/kg 범위로 검출되어 환경오염 우려수준인 25 mg/kg 이하였으며, 카드뮴은 모든 시료에서 정량한계 수준인 0.006 mg/kg 이하로 검출되지 않았다. 구리는 충남 서천 지역에서 최고 25.6 mg/kg이 검출되었으나 토양오염 우려기준 250 mg/kg의 약 1/10수준으로 안전하였다. 그리고 니켈, 납, 아연, 6가크롬 등 분석한 8종의 중금속이 토양오염우려기준 보다 낮게 검출되어 안전한 수준임이 확인되었다. 농업용 수 중 비소의 잔류량은 하천수에서 최고 24.3 ug/L으로 상대적으로 많은 양이 검출되었으나, 지하수는 대부분 1~2 ug/L 수준으로 검출되어 농업용수의 수질기준(0.05 mg/kg)을 초과하지 않았다. 백미와 현 미 중 중금속 5종을 분석한 결과 수은과 크롬은 정량한계 미만이었으며, 카드뮴은 0.004~0.068 mg/kg 이 검출되어 한국과 중국의 잔류허용기준인 0.2 mg/kg 이하였다. 또한 백미 중 납은 0.002~0.136 mg/kg 범위로 우리나라의 백미 기준 0.2 mg/kg, 중국 현미 기준 0.2 mg/kg 이하로 안전하였다. 전반 적으로 쌀 중 비소 등 5종의 중금속 잔류량은 한국과 중국의 잔류허용기준의 1/10~1/20 수준으로 안전 하였다.
LC-MS/MS를 이용한 팽이버섯과 버섯배지 중 acephate와 대사체 methamidophos의 잔류 분석법 확립
노현호(Hyun Ho Noh),권혜영(Hyeyoung Kwon),노진호(Jin-ho Ro),이효섭(Hyo Sub Lee) 한국농약과학회 2018 농약과학회지 Vol.22 No.3
This study was carried out to establish residual analysis method of acephate and its metabolite methamidophos using QuEChERS method with LC-MS/MS in winter mushroom and its mediums. The winter mushroom mediums used in the study were rice bran, corn flour, corncob, beet pulp, soybean meal and soybean curd residue which are mainly used for winter mushroom cultivation. Extraction methods for residual pesticides were established by varying the weight of each mushroom medium, such as 10g mushroom, 5 g rice bran, corn flour, corncob, beet pulp and soybean meal and 2 g soybean curd residue. The d-SPE method for removed fatty substance was established using QuEChERS kit added 150 mg MgSO₄, 50 mg PSA and 50 mg C<SUB>18</SUB>. Recovery test was performed for validation of residual analysis method after fortified 0.01 and 0.05 mg/kg into winter mushroom and its mediums. Recoveries and RSDs in those found to be 79.0-105.8% and less than 5.3% indicating that meet method for the residual pesticide analysis. By using the developed method, the safety of residual pesticide in mushroom medium can be determinated quickly. In addition, inadvertent or indirect pesticide residues in mushroom will be prevented in advance. Based on these results, it can contribute to improving the safety of residual pesticides in mushrooms.
국내 논토양 및 밭토양 중 농약유래 잔류성유기오염물질의 노출량 평가
임성진,오영탁,노진호,김승용,주형곤,이민호,윤효인,최근형,류송희,박병준,Lim, Sung-Jin,Oh, Young-Tak,Ro, Jin-Ho,Kim, Seung-Yong,Joo, Hyeong-Gon,Lee, Min-Ho,Yoon, Hyo-In,Choi, Geun-Hyoung,Ryu, Song-Hee,Park, Byung-Jun 한국환경농학회 2017 한국환경농학회지 Vol.36 No.3
BACKGROUND:This study was conducted to investigate residual organochlorine pesticides (ROCPs) in agricultural soils and crops. Agricultural soil samples and crop samples were collected from 93 cities and counties. METHODS AND RESULTS: Extraction and clean-up for the quantitative analysis of ROCPs were conducted by the modified quick, easy, cheap, effective, rugged, and safe (QuEChERS) method. Recovery and limit of detection (LOD) of ROCPs in agriculturalsoils and crops were 76.5-103.0 and 75.2-93.2%, 0.01-0.08 and $0.10-0.15{\mu}g/kg$, respectively. Detected ROCPs in agricultural soils were ${\alpha}$-endosulfan, ${\beta}$-endosulfan, and endosulfan sulfate, the residue were 2.0-12.0, 1.2-53.1, and $2.2-329.8{\mu}g/kg$, respectively. But these pesticides in all green perilla leaf and green pepper samples were not detected. CONCLUSION: These results showed that ROCPs residues in agricultural soils were not as high as crop safety threatening.
포도 및 복숭아 과수원 토양 및 과실 중 잔류성유기염소계 농약류 잔류량 조사
임성진(Sung-Jin Lim),박정훤(Jeong-Hwon Park),노진호(Jin-Ho Ro),오영탁(Young-Tak Oh),주형곤(Hyeong-Gon Joo),이민호(Min-Ho Lee),윤효인(Hyo-In Yoon),최근형(Geun-Hyoung Choi),류송희(Song-Hee Ryu),박병준(Byung-Jun Park) 한국농약과학회 2018 농약과학회지 Vol.22 No.4
This study was conducted to investigate residual organochlorine pesticides in grape and peach orchard and fruits. Extraction and clean-up method were developed using the modified QuEChERS method for residual organochlorine pesticides (ROCPs) in orchard soil and fruits. Recovery and limit of detection (LOD) of ROCPs in soil and fruits were 76.4-101.2 and 76.4-90.4%, 0.01-0.08 and 0.2-0.4 μg/kg, respectively. Detected ROCPs in grape and peach orchard soil was 2,4-DDT, 4,4-DDE, 4,4-DDT, and endosulfan sulfate, the residues were 3.3, 2.3-7.1, 4.5, and 19.2-73.4 μg/kg, respectively. But four pesticides in all fruit samples were not detected. These results showed that ROCPs residues in grape and peach orchard soil had no effect on safety of agricultural products.
딸기 시설재배지 토양 및 농산물 중 잔류성유기오염물질(POPs)의 잔류량-유기염소계 농약
임성진 ( Sung Jin Lim ),오영탁 ( Young Tak Oh ),조유성 ( You Sung Jo ),노진호 ( Jin Ho Ro ),최근형 ( Geun Hyoung Choi ),양지연 ( Ji Yeon Yang ),박병준 ( Byung Jun Park ) 한국환경농학회 2016 한국환경농학회지 Vol.35 No.1
BACKGROUND: Residual organochlorine pesticides (OCPs) are chemical substances that persist in the environment, bioaccumulate through the food web, and pose a risk of causing adverse effect to human health and the environment. They were designated as persistent organic pollutants (POPs) by Stockholm Convention. Greenhouse strawberry is economic crop in agriculture, and its cultivation area and yield has been increased. Therefore, we tried to investigate the POPs residue in greenhouse soil and strawberry. METHODS AND RESULTS: Extraction and clean-up method for the quantitative analysis of OCPs was developed and validated by gas chromatography (GC) with electron capture detector (ECD). The clean-up method was established using the modified quick, easy, cheap, effective, rugged, and safe(QuEChERS) method for OCPs in soil and strawberry. Limit of quantitation (LOQ) and recovery rates of OCPs in greenhouse soil and strawberry were 0.9-6.0 and 0.6-0.9 μg/kg, 74.4-115.6 and 75.6-88.4%, respectively. The precision was reliable sincerelative standard deviation (RSD) percentage (0.5-3.7 and 2.9-5.2%) was below 20, which was the normal percent value. The residue of OCPs in greenhouse soil was analyzed by the developed method, and dieldrin, β-endosulfan and endosulfan sulfate were detected at 1.6-23, 2.2-28.4 and 1.8-118.6 μg/kg, respectively. Those in strawberry were not detected in all samples. CONCLUSION: Dieldrin, β-endosulfan and endosulfan sulfate in a part of investigated greenhouse soil were detected. But those were not detected in investigated greenhouse strawberry. These results showed that the residue in greenhouse soil were lower level than bioaccumulation occurring.
무인항공살포용 농약 Ametoctradin+Dimethomorph 47(27+20)% 액상수화제의 풍향 및 풍속에 의한 비산량 측정
노현호(Hyun Ho Noh),김창조(Chang Jo Kim),문병철(Byeong-chul Moon),노진호(Jin-ho Ro),김단비(Danbi Kim),오민석(Min-seok Oh),권혜영(Hyeyoung Kwon),김흥태(Hueng Tae Kim),경기성(Kee Sung Kyung) 한국농약과학회 2020 농약과학회지 Vol.24 No.1
This study was carried out to determine pattern of pesticide drift by unmanned aerial spraying with agricultural multi-copter. The test pesticides were ametoctradin+dimethomorph 47(27+20)% SC that is used for protection to shallot from downy mildew disease in Korea. In order to measure the amount of drift, cellulose patches were placed up the outside of treatment plot in 8 direction from 3 m to 15 m and then sprayed pesticide. The pesticide solution was prepared in multi-copter’s reservoir at 16-fold diluted (i,g, recommended) concentration of the active ingredient. The spraying altitude and speed were 2 m and 3 m/s, respectively. The AWS (auto weather stations) was set to measure climatic conditions, such as wind direction and speed at intervals of 5 seconds, during the application period. The patches were taken immediately after spraying pesticides and shallots closest to the patch were collected and then analyzed for the pesticide residues. The pesticide residue analysis was performed by QuEChERS method. Average recoveries of ametoctradin and dimethomorph in patch and shallot were found to be 82.07-105.30%. As a result, ametoctradin and dimethomorph were drifted to 5 m at a wind speed of 0 m/s. At 2.5 m/s, pesticides were drifted up to 10 m in the forward direction of the wind, indicating that pesticide drift was determined caused by wind direction and speed.
농업용수 중 잔류성유기염소계 농약류의 잔류량과 수서생물 영향 평가
임성진(Sung-Jin Lim),오영탁(Young-Tak Oh),김승용(Seung-Yong Kim),노진호(Ji n-Ho Ro),최근형(Geun-Hyoung Choi),류송희(Song-Hee Ryu),김상수(Sang-Su Kim),박병준(Byung-Jun Park) 한국농약과학회 2017 농약과학회지 Vol.21 No.2
This study was conducted to investigate residual organochlorine pesticides (OCPs) in agricultural waters. Extraction and clean-up method were developed using the liquid-liquid extraction for OCPs in water. Limit of detection (LOD), recovery, and relative standard deviation (RSD) of OCPs and in agricultural waters ranged from 0.001-0.004 μg/L, 73.7-110.9%, and 0.9-4.2%, respectively. The residues of OCPs in agricultural water were analyzed by the developed method, and α-endosulfan, β-endosulfan, and endosulfan sulfate were detected at 0.11-0.18, 0.08-0.12, and 0.11-0.13 μg/L, respectively. The detection number of three compounds in agricultural water were 8 (9.1%), 10 (11.4%), and 20 (22.7%) among 88 samples, respectively. These results showed that endosulfans were detected in agricultural waters and the continuous monitoring of them will be conducted.
LC-QTOF-MS를 활용한 현미 중 동물용의약품의 정량 분석
임성진(Sung-Jin Lim),오영탁(Young-Tak Oh),노진호(Jin-Ho Ro),주형곤(Hyeong-Gon Joo),이민호(Min-Ho Lee),윤효인(Hyo-In Yoon),최근형(Geun-Hyoung Choi),류송희(Song-Hee Ryu),김단비(Dan-Bi Kim),박병준(Byung-Jun Park) 한국농약과학회 2017 농약과학회지 Vol.21 No.3
SPE cartridge clean-up method for simultaneous determination of veterinary pharmaceuticals (VPs) in brown rice was developed and validated by LC-QTOF-MS. The clean-up method was established with HLB (500 mg, 6 mL) cartridges for VPs in brown rice, and the eluate was analyzed to quantify the compounds by LC-QTOF-MS. The developed method was validated, and the recovery, RSD, and LOQ of VPs were 70.3-112.0%, 1.1-5.7%, and 0.076-7.6 μg/kg, respectively. These results showed that the developed method for simultaneous determination of VPs contribute to monitoring of it in agricultural environment and agriculture product.